PMID- 29681594 OWN - NLM STAT- MEDLINE DCOM- 20180926 LR - 20180926 IS - 1881-1736 (Electronic) IS - 0030-154X (Linking) VI - 94 IP - 3 DP - 2017 TI - Postnatal changes of interleukin-18 receptor immunoreactivity in neurons of the retrosplenial cortex in wild-type and interleukin-18 knock out mice. PG - 93-99 LID - 10.2535/ofaj.94.93 [doi] AB - Interleukin-18 (IL-18), which is involved in the inflammatory response, is also found in the cerebral cortex. IL-18 receptor-immunoreactive (IL-18R-ir) neurons are present in layer V of the retrosplenial cortex (RSC). In the adult IL-18 knock out (KO) mice, no IL-18R-ir neurons but many degenerated neurons are present in layer V of the RSC, suggesting that any changes in the neurons of layer V have occurred during postnatal development. We examined changes of IL-18R expression during postnatal development. In the wild-type mice, many IL-18R-ir neurons were present in layers II, III and VI of the RSC in 2-week-old mice, whereas they were sparsely observed in only layer III in 3-week-old mice. No IL-18R-ir neurons were present in 4- and 5-week-old mice. In older than 6-week-old mice, many IL-18R-ir neurons were present in layers V and VI. The IL-18KO mice showed IL-18R-ir neurons in layers II, III and VI at 2-weeks-old, and a few in layer III at 3-week-old mice, similar to that in the wild-type mice. No IL-18R-ir neurons were found in mice older than 4 weeks of age. Thus, IL-18 or IL-18R seem to be involved in the construction of neural circuits corresponding to events after 3-weeks of age. FAU - Hayakawa, Tetsu AU - Hayakawa T AD - Laboratory of Tumor Immunology and Cell Therapy Hyogo College of Medicine Mukogawa. FAU - Hata, Masaki AU - Hata M AD - Laboratory of Tumor Immunology and Cell Therapy Hyogo College of Medicine Mukogawa. FAU - Kuwahara-Otani, Sachi AU - Kuwahara-Otani S AD - Department of Anatomy Hyogo College of Medicine Mukogawa. FAU - Yagi, Hideshi AU - Yagi H AD - Department of Anatomy Hyogo College of Medicine Mukogawa. FAU - Okamura, Haruki AU - Okamura H AD - Laboratory of Tumor Immunology and Cell Therapy Hyogo College of Medicine Mukogawa. LA - eng PT - Journal Article PL - Japan TA - Okajimas Folia Anat Jpn JT - Okajimas folia anatomica Japonica JID - 0401014 RN - 0 (Receptors, Interleukin-18) SB - IM MH - Animals MH - Cerebral Cortex/*cytology/*growth & development/metabolism MH - Male MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Neurons/metabolism MH - Receptors, Interleukin-18/*metabolism OTO - NOTNLM OT - IL-18 receptor OT - cerebral cortex OT - cytokines OT - development OT - immunohistochemistry OT - laminar distribution EDAT- 2017/01/01 00:00 MHDA- 2018/09/27 06:00 CRDT- 2018/04/24 06:00 PHST- 2018/04/24 06:00 [entrez] PHST- 2017/01/01 00:00 [pubmed] PHST- 2018/09/27 06:00 [medline] AID - 10.2535/ofaj.94.93 [doi] PST - ppublish SO - Okajimas Folia Anat Jpn. 2017;94(3):93-99. doi: 10.2535/ofaj.94.93.